优化可减少十分一之的时间

[osabc]

app.py 方法 get_bbox_range 没起什么主作用，优化可减少十分一之的时间

    if os.path.exists(crop_coord_save_path) and args.use_saved_coord:
        print("using extracted coordinates")
        with open(crop_coord_save_path,'rb') as f:
            coord_list = pickle.load(f)
        frame_list = read_imgs(input_img_list)
    else:
        print("extracting landmarks...time consuming")
        coord_list, frame_list = get_landmark_and_bbox(input_img_list, bbox_shift)
        with open(crop_coord_save_path, 'wb') as f:
            pickle.dump(coord_list, f)
    bbox_shift_text=get_bbox_range(input_img_list, bbox_shift)
    i = 0
    input_latent_list = []